Fracture and strain rate behavior of airplane fuselage materials under blast loading

J. Mediavilla Varas, F. Soetens, E. Kroon, J.E. Aanhold, van, O.R. Meulen, van der, M. Sagimon

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The dynamic behavior of three commonly used airplane fuselage materials is investigated, namely of Al2024-T3, Glare-3 and CFRP. Dynamic tensile tests using a servo-hydraulic and a light weight shock testing machine (LSM) have been performed. The results showed no strain rate effect on Al2024-T3 and an increase in the failure strain and failure strength of Glare-3, but no stiffening. The LSM results on CFRP were inconclusive. Two types of fracture tests were carried out to determine the dynamic crack propagation behavior of these materials, using prestressed plates and pressurized barrels, both with the help of explosives. The prestressed plates proved to be not suitable, whereas the barrel tests were quite reliable, allowing to measure the crack speeds. The tougher, more ductile materials, Al2024-T3 and Glare-3, showed lower crack speeds than CFRP, which failed in a brittle manner.
Original languageEnglish
Article number42017
Number of pages8
JournalEPJ Web of Conferences
Publication statusPublished - 2010


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